The Honda valvetrain is certified for short bursts up to 7,000 rpm, yet extended periods at those levels have proven to be detrimental. By equipping your vehicle with the Ferrea valve spring kit, you gain a US-made PAC spring that increases seat pressure by over 20 psi, helpful in limiting valve bounce and allowing secure operation up to and beyond 9,000 rpm - crucial should you miss a gear or over rev mechanically.
Includes:
S10165- 16
E20056- 16
SL1151- 8
SL1152- 8
K10116- 16